Abstract: A method for testing a POS machine is applied to the test terminal and includes: obtaining sample data of a magnetic track; outputting a first test level according to the sample data of the magnetic track and generating a magnetic field that varies over time according to the first test level; and obtaining a first operation result generated by a POS machine under test and obtaining a test result of whether the POS machine under test can perform a card swiping operation normally according to the first operation result. The first operation result is an operation result which is generated by the POS machine under test according to an electromagnetic induction effect generated according to the magnetic field that varies over time. By performing the method, operational complexity of testing of the POS machine can be reduced, and the efficiency of testing of the POS machine can be improved.

Abstract: The present disclosure provides a packaging device for an integrated power supply system and a packaging method thereof. The packaging device comprises: a power consumption system die and a power supply system die below the power consumption system die; the power supply system die comprises an active module, a passive module and a rewiring layer, wherein the active module and the reactive module are molded, and the rewiring layer is located above the molded active module and passive module, to connect the active module and the passive module, and a plurality of power supply tracks are disposed in the rewiring layer to abut the power consumption system die; the power consumption system die is abutted with the plurality of power supply tracks; and an external power source supplies power to the power consumption system die through the power supply system die.